As a guide to further research, consider Oxford Bibliographies Online: Hinduism and the LibGuide for South Asian Epic Traditions.
The Veda
The Hymns of the Rigveda, translated by Ralph T.H. Griffith (1896) available online here:
Rig Veda : a metrically restored text with an introduction and notes / edited by Barend A. van Nooten and Gary B. Holland.
Cambridge, Mass : Dept. of Sanskrit and Indian Studies, Harvard University : Distributed by Harvard University Press, 1994.
Located at Firestone Library Classics Collection (CLAS) 2318.43 vol.50
The Rig Veda : an anthology ; one hundred and eight hymns / selected, translated and annotated by Wendy Doniger O'Flaherty.
Harmondsworth : Penguin Books, 1981.
Located at Firestone Library Classics Collection (CLAS) PK3016.A2 E5 1981
Upaniṣads
Upaniṣads / translated from the original Sanskrit by Patrick Olivelle.
Oxford ; New York : Oxford University Press, 1996.
Located at Firestone Library (F) BL1124.52 .E5 1996 and other locations
Mahābhārata
The Mahābhārata / translated and edited by J.A.B. van Buitenen.
Chicago : University of Chicago Press, 1973-
Located at Firestone Library Classics Collection (CLAS) BL1138.22 .E545 1973
Bhagavad Gītā
The Bhagavad Gita / translated with an introduction and notes by W.J. Johnson.
Oxford [England] : New York : Oxford University Press, 1994.
Located at Firestone Library BL1138.62 .E5 1994 and other locations
The Bhagavad Gita
London ; New York : Penguin, 2008.
Located at Firestone Library (F) BL1138.62.E5 L44 2008
Īśvara Gītā
Lord Śiva's Song : the Īśvara Gītā / Translated with an introduction and notes by Andrew J. Nicholson.
Albany : State University of New York Press, 2014
Located at Firestone Library (F).
Rāmāyana
The Ramayana : a shortened modern prose version of the Indian epic : (suggested by the Tamil version of Kamban) / by R. K. Narayan.
Narayan, R. K., 1906-2001.
New York : Penguin Books, [1993?]
Located at Firestone Library (F) PR9499.3.N3 R35 1993 and other locations
Dharmaṥāstras
The dharmasūtras : the law codes of Āpastamba, Gautama, Baudhāyana, and Vasiṣṭha / translated from the original Sanskrit and edited by Patrick Olivelle.
Oxford ; New York : Oxford University Press, 1999.
Located at Firestone Library (F) KNS122 .D43 1999
Manu's code of law : a critical edition and translation of the Mānava-Dharmaśāstra / Patrick Olivelle ; with the editorial assistance of Suman Olivelle.
Manu (Lawgiver).
New York : Oxford University Press, 2005.
Located at Firestone Library (F) KNS127.3.A4 E547 2005
The law code of Viṣṇu : a critical edition and annotated translation of the Vaiṣṇava-Dharmaśāstra / Patrick Olivelle.
Cambridge, Mass. : Department of Sanskrit and Indian Studies, Harvard University : Distributed by Harvard University Press, 2009.
Located at Firestone Library Classics Collection (CLAS) 2318.43 vol.73